Cover posted from "VOJNA POSTA*Br.96*26.9.17" with Serbian censorship "PREGLEDALA/VOJNA CENZURA (58)" in violet fr. with 5c+2x10c. cancelled by pen, via "VOJNA POSTA *Br.999*27.9.17", arr. "ZURICH 1*24 X 1917". Also French censorship "OUVERT par lAUTORITE MILITAIRE*126" in violet. Probably LAST DAY of use for Serbian censorship.